Game Files

Unreal Development Kit (UDK)

opens 2 file types
Windows
AT A GLANCE
PlatformsWindows
Opens2 file types
Get it fromwww.unrealengine.com
Download Unreal Development Kit (UDK)

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2 file types verified
Last reviewed Sep 2026

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What is Unreal Development Kit (UDK)?

Unreal Development Kit (UDK) is listed in our database as a program that opens or converts the file formats shown on this page. It runs on Windows. The formats it works with include .UPK and .PSK.

You can get the official version from the developer's website (www.unrealengine.com); we do not host the installer and only point you to the original source. A detailed, hand-checked description of Unreal Development Kit (UDK) is on the way; for now the information here comes straight from our database.

Files Unreal Development Kit (UDK) opens

2 formats
Game Files
3D Image Files

Click any badge for full per-format details - what it is, how to open it and how to convert it.

Download Unreal Development Kit (UDK)

SOURCEwww.unrealengine.comofficial site - avoid third-party download portals
PLATFORMSWindows

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programs & formats

Files Unreal Development Kit (UDK) opens most

1.UPKUnreal Engine 3 Package
2.PSKUnreal Engine Skeletal Mesh File (ActorX)

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